import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'
// 导入所有的动态路由规则
import {asyncRoutes} from '@/router'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login','/404'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({path:'/'})
      NProgress.done()
    } else {
      // 有token去的不是登录就放行
      next()
       const hasGetUserInfo = store.getters.name
      if (hasGetUserInfo) {
        // 表示之前以获取到的用户信息 之后就不需要在获取了
        // next()
      } else {
        // 没有用户信息 获取用户信息
          // await store.dispatch('user/getInfo')
        try {
          // get user info
        const {roles:{menus}} =   await store.dispatch('user/getInfo')
        console.log(menus,99887766);

        // 步骤说明:
        // 现在获取当前用户所拥有的权限:menus
        // 当前的menus 去所有的那8个中做筛选并获取筛选之后的
        //asyncRoutes ===[{path:''},{}]
          var newRoutes =  asyncRoutes.filter(item=>{
            var name =item.children[0].name //判断每一项是否存在当前的权限中
            return menus.includes(name)
          })
        // 保证的是 左侧菜单有这几个权限  路由规则中没有
        store.commit('menu/setMenuList',newRoutes)
        //  动态生成路由规则
        newRoutes.push({path:'*',redirect:'/404',hidden:true})
        router.addRoutes(newRoutes)

        console.log(to,556677);
          // 添加所有的动态路由规则
          // router.addRoutes(asyncRoutes)
          // console.log(router,77778888);
          //this.$router.push('/login')==push({path:'/login'})
          next({path:to.path,replace:true})
          // next()
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch('user/resetToken')
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }
      }
    }
  } else {
    /* has no token*/
    if (whiteList.includes(to.path)) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next('/login')
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
